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2020-7-7 00:46:11
https://www.gov.uk/countersigning-passport-applications
官網寫
If you’re applying outside the UK:
Your countersignatory must have a current British, Irish or other EU, US or Commonwealth passport.
If they have a US, Commonwealth, or non-British or non-Irish EU passport, you must include with your application a colour photocopy of the page with their photograph on it.